248 HOG DISEASE. 



manifested this characteristic is apparent. The 

 symptoms a t e not only not always the same, but are 

 widely different at different seasons, and in different 

 localities and even hi different individuals in the same 

 locality; so that we must not always expect to meet 

 with the same train of symptoms. 



VARIOUS CAUSES* have been mentioned all of 

 which may be summed up in unwholesome conditions 

 of life, in food, drink and surroundings, to which is 

 subsequently added an epizootic influence. 



Among the exciting causes are : KEEPING MANY 

 HOGS in CLOSE or NARROW QUARTERS, some are thus 

 over-laid or over-heated and then suddenly chilled 

 while feeding; the disease rarely or never appears when 

 one or two hogs are kept together ; FEEDING SWINE 

 ON THE GROUND, IN THE MUD or in troughs where 

 mud and filth is of necessity eaten with the food ; as 

 this condition always causes typhus among people, so 

 it will cause blood poisoning or septic disease among 

 swine. Too RAPID CHANGE OF FOOD as from poor 

 feed, to good feed, or from good to very good feed, 

 the consequence being that the excretory organs, the 

 liver, kidneys, lungs, glands and skin fail to carry off 

 the proper amount of effete or decomposed matter 

 which hence accumulates, occasioning this poisoning 

 of the blood which constitutes the disease. It is 

 from hence that young shotes are most subject to it, 

 and that it is most fatal among them, and hence 

 most common among swie that have been taken up 

 in the fall, and put suddenly upon very rich heavy 



